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I'd like to add while the corsair guy may still be around.
Thanks for the vid. It was entertaining. Maybe you can put up more vids of experiments later on? =)
The failure was from the primary side switching transistors, they overheated and shorted so quickly because Corsair's test left the cover off to cause inadequate airflow. A mere 10F cooler lab environment, if present, would not be nearly enough to counter the effect of this. These are poor PSU which would fail eventually though with the cover on one might power a modest low end system for a year or two if you're lucky.
However, this mainly means you should avoid that specific PSU and others built very similar, you cannot assume this will happen with many other budget PSU, especially not with the cover off.
If you left the cover off the Corsair and loaded it to 75% it would probably fail too, though likely taking more than a couple of minutes to do so.
The whole PSU is junk but only three things caused it, the combination of all 3 actually, if any of the following were improved it would have a better result.
Undersized transistors
Thin heatsink
Cover off allowed this combination to overheat more, and more rapidly.
A shorted capacitor could do it, but you wouldn't generally find that happening with the PSU so new else it wouldn't have turned on (actually I mean stayed on more than ms) at all if it were defect rather than degraded caps over time.
Kyle,
I think the hard readers are really asking you to have a "Cheap POS PSU Fireworks Roundup"![]()
I think we have done a couple of those, we just don't film them or TRY to break/blow them up. One reason for this is that our test equipment is very expensive to replace. We are not a multi-million dollar company like Corsair. And us having to spend $5000 on a new SM8800 tester is a big deal, not to mention the down time.
I had a cheap 420W PSU... but it didnt blow up or catch on fire when it died.... only a loud pop.
Hey Corsiar, since you guys test your PSU's so well, how about telling me why I went through 2 VX550's for the same reason? Replaced the first with an Antec to test. Perfect. So I RMA and got the 2nd one, and its starting to do the same crap (hard locking/looping audio on everything).
Funny how my $35 Antec has never caused a hitch, but the $100 VX550 cant stay stable....
Quality indeed.
Nice experiment, but nothing is convincing me at this point.
was good entertainment, but thats not likely going to happen in real life.
Hey Corsiar, since you guys test your PSU's so well, how about telling me why I went through 2 VX550's for the same reason? Replaced the first with an Antec to test. Perfect. So I RMA and got the 2nd one, and its starting to do the same crap (hard locking/looping audio on everything).
Funny how my $35 Antec has never caused a hitch, but the $100 VX550 cant stay stable....
Quality indeed.
Nice experiment, but nothing is convincing me at this point.
2 things : great to see the Corsair guy here (their lifetime warranty helped me on my old XMS sticks)
and
does anyone else think that the cameraman was brave ? I would have shat myself waiting for those PSU's to explode![]()
Actually in my years of repairing PSU, having transistors blow out is not all that uncommon in marginal units. Maybe 3rd most common fault after fan and capacitor failures.
+1... it's very common. I have way too much proof of that lying around the lab![]()
I'm willing to bet $20 that your rig in your sig (I'm guessing that's where you used the VX550) was heavily overclocked when you had these issues, and you're whining about the PSU, when you're running your other components much higher than spec/stock, most likely causing the issues.
BS
there's no such thing as Brand: X
name names or STFU
Corsair Cinema is showing a video today that clearly demonstrates the need for a high quality power supply. What you see in the video is exactly the reason behind our extensive testing process for every PSU that comes across our test bench. So how well do Corsairs PSUs stand up to our tests? See for yourself.
I had some fun like that too, if I may be permitted a cheap plug: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=71
It does take nerves of steel. I've never had a PSU explode on me, but I did have a PSU power cord blow up on me. I plugged it in, and in a split second it inflated, glowed red, and blew the hell up, while I was still holding the end. Knocked me on my ass, I'll tell you.
Hey Corsiar, since you guys test your PSU's so well, how about telling me why I went through 2 VX550's for the same reason? Replaced the first with an Antec to test. Perfect. So I RMA and got the 2nd one, and its starting to do the same crap (hard locking/looping audio on everything).
Funny how my $35 Antec has never caused a hitch, but the $100 VX550 cant stay stable....
Quality indeed.
Nice experiment, but nothing is convincing me at this point.
working in a computer shop I see lots of these cheap PSUs, most of them don't have enough connectors to reach there rated power output with normal parts plugged in. As an example we sold Apower 450 watt PSUs with a 20 pin mobo connector a 4 pin cpu connector three 4 pin molix connectors and a floppy connector. I can't see any way you could ever draw 450 watts of that PSU with only those connectors without something designed to stress the PSU....and we still got a lot of them back dead.
BS
there's no such thing as Brand: X
name names or STFU
WTF????? You certainly don't see that happen everyday!